Although the purpose of steroids is to reduce swelling, not the size of the tumor itself, they do have a toxic effect on certain tumor cells, particularly primary central nervous system lymphoma (PCNSL).Steroids may be prescribed before, during, or after surgery.They may be started when the tumor is diagnosed if edema is seen on a magnetic resonance image (MRI) scan, or if swelling is causing pressure on the brain. Steroids may also be used to treat edema caused by radiation therapy.our doctor can explain other side effects that may occur with steroid use. If you are using steroids, be sure to contact your doctor if you: 1  Run a temperatureâeven if no other symptoms are present. 2  Have blood in your bowel movements.
By definition, lawn thatch is the layer of (mainly) dead turfgrass tissue lying between the green vegetation of the grass above and the root system and soil below. This layer, if it becomes too thick (1/2 inch or more), is bad for your grass and must be removed to maintain lawn health.
Thatch can have either beneficial or detrimental effects on turf depending on the amount present. For example, a thin layer of thatch in lawns (Â½ inch or less) provides insulation against temperature extremes and fluctuations in soil moisture. Some thatch on sports turf (about Â½ inch) provides much needed resiliency, softens playersâ impact on the surface, and improves footing.